Advanced search "Attachment File Type" - "is not" also identifies parent items

mjthoraval

When searching for "Attachment File Type" - "is not", I would expect the result to contain only attachment files. But it also identifies the parent item:

https://s3.amazonaws.com/zotero.org/images/forums/u265723/xtxkdnoduz0nx6i1u3la.png

Zotero 7.0.3-beta.2+10d27b8f6 (64-bit)
Windows 10

AbeJellinek

You can add "Item Type", "is", "Attachment" to filter to only attachments.

mjthoraval

Thank you. That is working.
But with this option, I am still not able to also include the parent items of the search results:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/p7tu7eavyo6zeixx63t8.png

It also does not feel logical to me.
See this advanced search for example, which includes in the results all the parent items in the library:
https://s3.amazonaws.com/zotero.org/images/forums/u265723/yyjqys0o67e0r7axyxc7.png

Or this result, if you tick the option "Include parent and child items of matching items" (not sure what is happening here):
https://s3.amazonaws.com/zotero.org/images/forums/u265723/mli6xh0ap1fb3umcctn7.png

I do no understand why these results should be logical.
For me, searching for "Attachment File Type" means that the results should be limited to attachment files.